<?php
namespace TQ\TqSeo\Backend\Validator;

/***************************************************************
 *  Copyright notice
 *
 *  (c) 2013 Markus Blaschke (TEQneers GmbH & Co. KG) <blaschke@teqneers.de>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

/**
 * TYPO3 Backend field validation: float
 *
 * @author      TEQneers GmbH & Co. KG <info@teqneers.de>
 * @package     TYPO3
 * @subpackage  tq_seo
 */
class FloatValidator {

    /**
     * Returns Javscript validation function body
     *
     * @return string
     */
    public function returnFieldJS() {
        return '
value = value.replace(/[^-0-9,.]/g,\'\');

var ret = 0;
try {
    if( isNaN(value) ) {
        value = 0;
    }

    ret = parseFloat(value);
} catch(e) {}

if( isNaN(ret) ) {
    ret = 0;
}

return ret;
';
    }

    /**
     * Validate number on serverside
     *
     * @param    string $value    Value
     * @param    mixed $is_in    Is in value (config)
     * @param    mixed $set    Set
     * @return    float
     */
    function evaluateFieldValue($value, $is_in, &$set) {
        return (float)$value;
    }
}

?>